Dozens of policing agencies are currently using cell-site simulators (CSS) by Jacobs Technology and its Engineering Integration Group (EIG), according to newly-available documents on how that company provides CSS capabilities to local law enforcement. A proposal document from Jacobs Technology,...
They've had these systems since the 90's. There's a documentary about a guy that got caught from one of these its on Netflix. I forget the name. If I remember I will edit this. He went through an insane amount of court documents and files to uncover LE has been illegally using Stingray systems and other custom made devices in cars for decades. They pinpoint physical location down to the square foot.